SOLUTION: A spherical balloon is to be deflated so that its radius decreases at a constant rate of 11 cm/min. At what rate must air be removed when the radius is 9 cm?

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Question 1060486: A spherical balloon is to be deflated so that its radius decreases at a constant rate of 11 cm/min. At what rate must air be removed when the radius is 9 cm?
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
A spherical balloon is to be deflated so that its
radius decreases at a constant rate of 11 cm/min.
At what rate must air be removed when the radius
is 9 cm.









The negative signs are because the radius and the volume 
are both decreasing.

Edwin
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